For the IWT/DPS key.

You can stop spamming IWT, as the mob/target is about to die.
That way, you are just doing DPS moves, and not IWT spam.
Or you can quickly pick a new target, or initiate follow.

I'm now using this kind of a set up for IWT spam:

Mapped Key 1: IWT
Step 1
- Do Mapped Key (Window: Current, General Keymap, FTL Assist Me)
- Send IWT keybind to (all of my action target group - Melee)

Mapped Key 2: FTL DPS Keys.
Execute a step on press or release.
(But you could leave this on release only, and spam twice as fast)
Step 1
- Do Mapped Key (Window: Current, General Keymap, IWT)
Step 2
- Do Mapped Key (Window: Current, General Keymap, FTL Assist Me)
- Send (same key as hotkey) to all windows.

Mapped Key 3: IWT Toggle
Step 1
- New Mapped Key State Action (Window: All, General Keymap, IWT - On)
- Pop Up Text Action (Window: Current, "IWT Enabled")
Step 2
- New Mapped Key State Action (Window: All, General Keymap, IWT - Off)
- Pop Up Text Action (Window: Current, "IWT Disabled").



This gets me...

I press a DPS key (I have IWT built into 1-5).
If the toon is not in my melee ATG, nothing happens on step 1 (key down).
And the normal action occurs on step 2 (key up).

However if the toon is in the melee group..
Step 1 has them assist and IWT.
Step 2 has the normal action occur on release.

But...
If I don't want the IWT action to occur.
With the third mapped key, I can enable or disable the IWT mapped key.
When it is enabled, everything happens as above.
When it is disabled, the FTL DPS key cannot call it.
So for example, when the mob is almost dead, press the 3rd mapped key button, and you have turned IWT off.